Dry ore-separator.



No. 758,097. I PATENTED APR. 26, 190-4.

- E W & W H NOAKBS DRY ORE SEPARATOR. APPLICATION FILED APR. 16. 1903 4 slinms snni 1.

PATENTED APR. 26, 1904.

. .E. W. & W. H. NOAKES.

' DRY ORE SBPARATOR.

APPLICATION FILED an. 16, 1903.

4 SHEETS-SHEET 3.

H0 MODEL.

N0. 758,097. PATENTED APR. 26,1904. E. W. 6: W; H. NOAKES.

DRY ORE SE PARATOR. APPLI'OATION FILED APR.16, 1903.

4 SHEETS-SHEET 4.

N0 MODEL.

2 cams Pzrcas 00.. worm.

UNITED TATES Patented. April 26, 1904.

EDWARD IV. NOAKES AND lI LIAM H NOAKES, OF LAGRANGE, ILLINOIS.

DRY ORE-SEPARATOR.

SPECIFICATION forming part of Letters Patent navsspev, dated. Apri126, 1904.

' I Application fina- A ia 16, 1903. Serial in. 152,916. on model.)

To all whom, it natty 001mm; 7

Be it known that we, EDWARD WV. NOAKES and WILLIAM H. NOAKES, subjects of the King of Great Britain, residing at Lagrange, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Dry Ore-Separators, of which the following is a specification. A Our invention relates to improvements in dry ore-concentrating machines of the class-in which the ore in a pulverized state is subjected to the action of an air-blast to separate the values from the gangue with which they are tion ofthe values from other associate particles of different specific gravity.

In carryingout our invention the pulverized ore is fed to a pan or pans or the like and sub-- jected therein to the action of an overhead air blast, either steady or intermittent, while at the same time motion is given to the pans to shake up the particles and bring'them under the direct influence of the blast. The operations of feeding the ore to the pans and of discharging the concentrates therefrom are performed automatically at desired intervals, and means are provided for feeding the concentrates and tailings separate from the. machine.

In the drawings, Figure 1 is abroken view,

partly in section, showing our improvements 4 in one desirable form; Figs. 2 and 3, enlarged broken sectional views of an intermittentore feeder shown, respectively, in the receiving and discharging position; Fig. 4, an enlarged section taken on line 4 in Fig.1 and showing a pan in its normal upright position; Fig. 5, a view similar to-Fig. 4:, but showing the pan and attendant parts in the position of effect ing discharge of the concentrates; Fig. 6, a section taken on line 6 in Fig. 4; Figs. 7, 8, and 9, end views of ore-feed-controlling means shown in three positions to illustrate its operation; Fig. 10, a broken perspective view of spring standards and bearings employed in the construction shown in Fig. 1'; Fig. 11, an en'- larged longitudinal section of the connection between the pan-carrying rock-shaft and its the pan-carrying shaft; Fig. 14, an enlarged broken sectional view taken on line 14 in'Fig. 13, and Fig. 15 belt-tightening means employed in the construction shown in Fig. 13;

Referring to the construction shown in Figs. 1 to 12, inclusive, A is a shaft mounted toward opposite ends in bearing-frames B B, which in turn are supported by spring legs or standards B B, fastened at their lower ends to the floors a C is the main drive-shaft of the machine, carrying a pulley (rand an eccentric Z On the eccentric is an eccentric-ring on the end of a pitman 0, which is connected with the shaft A, as shown in Fig. 11, to permit independent rocking of the shaft, as hereinafter described.

Below the shaft A is a longitudinally-extending trough D of the form in crosssection shown in Figs. 4: and 5. It has inclined sides (Z e and a longitudinally-exten ding wall or partition f, also. arranged to present longitudinally-extending discharge-openings in the base of the trough in diflerent planes.

Extendingalong and closing the upper side.

openings is an endless travel-ing" belt 'g,

stretched over drums g 9 beyond opposite travel in opposite directions, as indicated bythe arrows.

j E E are pans rigidly secured by means of clips 71 to the shaft A to rest centrally over the trough. In Fig. 1 three pans E are shown; but any desired number may be employed. Beneath each pan E is a valve F, hinged, as shown at 70, to the wall'or partition f and adapted to move from the vertical position shown in Fig. 5 to the inclined position shown in Fig. 4, wherein it rests against the wall 0? and closes the passage to thebelt h, guiding material falling thereon to the belt g. The valves are actuated by toggles Z, connected with the clips i. The pans E may be of any desired form; but we prefer to construct them with inward-projecting flangesm at their tops, cut away at m for the purpose of discharging, as hereinafter described. The bottoms m of the pans are preferably roughened or riffled, and Fig. 6 shows the bottom corrugated for this purpose. Extending over and housing the pans E are hoods F, which may be of the form shown in Fig. 1. v

G is an inclined ore-feed pipe or main provided with discharge-pipes 11, preferably provided with valves n. The pipes 11 may have serrated lower ends M, as shown, to facilitate the discharge of ore therethrough and prevent clogging. Mounted to extend horizontally along one side of the lower ends of the pipes n is a rock-shaft H, upon which are mounted scoop-shaped receptacles H, extending beneath the pipes n.

I I are ore-feed pipes extending at the lower ends through the tops of the hoods F and terminating in the hoods nearly centrally over the pans E. The upper ends of the pipes I are hopper-shaped and in position to receive *ore discharged from the receptacles H.

K is a-nair-conducting main extending from a fan X and having branch pipes K extending downward through the hoods and terminating in flaring mouths K centrallyover the pans. Inter-posed in the branch pipes K are valves K Mounted in hearings on a standard L is a shaft L, provided between its bearings with a pulley L and provided at opposite ends With disks 1? g, respectively. The disk p is provided on its circumference with a radiallyprojecting pin p, and the disk 7 is provided with a circumferential radially-extending pin q, the pins being in the relative position shown. Journaled in .astandard M is a shaft M, carrying a sprocket-wheelMi geared by meansof a drive-chain M to a sprocket-wheel H .on the shaft H. On the inner end of the shaft M and fixedthereto is an arm M. carrying a pin M extendingover the circumferential face ofthe disk 10 in the path of the pin 19.

On thestand'ard M isa stationary arm M, with which the arm M is connected by means of a spring M. The pulley L is belted tolthe pulley (0 von the constantly-rotating drive-shaft O. In the rotation of the shaft L and consequent rotation of the disk 10 the pin 19 in its movement from the position shown in Fig. 7 to that shown in Fig. Qengages the pin M and swings the arm M until by reason of the fact that the disk p and arm M are upon eccentric bearings the pin 9 wipes past the pin M During the engagement between the said pins the arm M is swung against the resistance of the spring M to rock the shaft M and rock the shaft H to turn the receptacles H from the position shown in Fig. 2 to the discharging position shown in Fig. 3. When the pin 2 has released the pin M the arm M and the rockshafts are turned to normal position by the spring to raise the receptacles H to normal position. J ournaled in a standard N is a rockshaft N, carrying a sprocket-wheel geared by means of a drive-chain N to a sprocket-wheel on the shaft A. On the shaft N is an arm N having a pin N extending over the circumferential face of the disk q in the path of the pin (1. v The arm N is connected by means of a spring N with a bracket-arm N the parts described corresponding with the parts de scribed upon the shaft M. In the rotation of the shaft L the pin q engages the pin N and swings the arm N to rock the shaft A and turn the, pans E and valves F from the position shown in Fig. 4 to that shown in Fig. 5.

The operation is as follows: Ore may be fed more or less constantly from the main Gr through the pipes 12. to the receptacles H while they are in their upright position. The operation is so timed with relation to the feed that in each rotation of-the shaft L suflicient ore will bedischarged into the pipes I to properly charge the pans. In the rotation of the shaft O comparatively rapid reciprocation is given to the pans E, and the air being turned on in the pipes K a blast is directed therefrom over the surface of the ore in the pans. The agitation of the .ore in thepans and the air-blast are so regulated that they operate to cause the lighter particles or gangue to be raised from the heavier values and to be blown out of the pan, whence they fall upon the inclined valve F and traveling belt 9. The belt carries the particles of gangue from the end of the machine and discharges them into the chute P. When the pin g on the disk q engages the pin N on the arm N the shaft A is rocked, as before described, to upset the pan Eand open the valves F, whereby the contents of the pan are discharged Onto the trav eling belt 72. and carried thereby to the chute R. Movements are so timed that complete or substantially complete separation of the heavier values from the lighter particles of gangue are effected by the agitation and airblast between the time that the shaft H is rocked to charge the pans and the shaft A is rocked to upset the pans.

In most cases, and especially where there is a decided difference in specific gravity between the values and the gangue, the machine constructed as shown in Fig. 1 will answer every purpose and result in clean separation, In cases where a difierence in specific gravity between the values and the gangue is very slight it may be'desirable to give a motion to the pans more like the well-known panning motion practiced by prospectors. This motion is more or less elliptical in the horizonal plane and also up and down. Fig. 13 shows apparatus constructed for giving this panningmotion to the pans mounted upon a rock-shaft A, as before described. S is a rotary shaft carrying eccentrics r, from which are suspended rods 1' in two sections, swiveled together. The shaft A is journaled in the lower ends of the lower sections of the rods, and the upper sections of rods move through guide-hangers r In the rotation of the shaft S the shaft A is vibrated in the vertical plane. Journaled in hangers T T are vertically rotary shafts 8, provided at their upper ends with beveled pinions a, meshing with bevel-pinions s on the shaft The lower ends of the shafts s are bent to extend in a horizontal plane and fit into the upper ends of blocks V, formed of upper members if and lower members 25, held pivotally together, whereby the upper .member may be turned about the shaft 8 without turning the lower member. The rock: shaft A is journaled in bearing-blocks o 'v, mounted in stirrups t at the under sides of the blocks V in such a manner that the bearing-block may rise and fall in the stirrups. Thus in the rotation of the shaft S the shafts s are rotated to turn the shaft A horizontally in a circle. The connection between the shaft 8 and block V may be loose to permit the said block to slide upon said shaft, if desired. Thus the shaft A besides being given the reciprocating motion as described in connection with Fig. 1 may receive an up-and-down motion from the rods r and a circular or rather elliptical motion by the shafts 8. If the means for reciprocating the shaft -A longitudinally are dispensed with, the shaft A will be given a circular and an up-and-down mo-, tion. Our invention contemplates employing any one or all of the said motions, if desired.

Where the rods 7* and their connections are provided togive up-and-down motion to the shaft-A, it is necessary to provide belttightening means at the belt N which rocks the shaft A, as described in connection with Fig. 1. Totake up slack in the chain N and cause it to remain taut during the up-anddown motion of the shaft A, we provide idlers N mounted upon springs, as shown, which press them outwardly against the chain. In the rise of the shaft A away from the shaft N and sprocket N the idlers are forced inward to the position shown by dotted lines in Fig. 15, while as the shaft A descends the idlers are pressed outward to prevent the belts slacking.

WVhat we claim as new, and desire to secure by Letters Patent, is-

1. In a dry ore-separator, the combination of a pan for holding the ore, agitating mechanisri-r for said pan, a stationary hood extending over said pan and means extending -.over said pan, an air; blast tube extending through said hood and PIOVIdQauWIth a discharge-opening in position toj'direct a blast of air' from above into said pan, and an orefeeder for saidpanr 3. In a dry ore-separatonja drive-shaft, a reciprocal support operatively connected with the drive-shaft, an ore-holding pan pivotally mounted upon the support, intermittent pan upsetting and righting means operatively connected with the drive-shaft, and means for directing an air-blast into said pan.

4. In a dry ore-separator, a drive-shaft, a reciprocal support operatively connected with the driveshaft,a n ore-holding pan pivotally mounted upon the support, intermittent pan upsetting'and righting means operatively connected with the drive-shaft, means for directing an air-blast into said pan, and an intermittingly-operating ore-feeder for the pan.

' 5. In a dry ore-separator, the combination of a pan for holding the ore having a roughened bottom and flaring sides terminating in inwardly-turned flanges cut away at the discharge .end thereof, agitating mechanism for the pan, means for tilting the pan, and means for directing an air-blast into the pan.

6. In a dry ore-separator, the combination with a trough, of a pan supported over the trough for holding the ore, agitating mechanism for the pan, means for tilting the pan to discharge the concentrates into the trough, separate conveyers in the trough, a valve beneath the pan movable to deflect the'concentrates and tailings separate to tlie'respective conveyers, and means for directing an airblast into the pan.

7. In a dry ore-separator, the combination of a pan for holding the ore, agitating mechanism for the pan, means for directing an airblast into said pan, tilting mechanism for the. pan, a discharge-chute for the concentrates,

a discharge-chute for the tailings, conveyers extending from beneath the pan'to said chutes, and a defiector'movable to direct the concentrates and tailings separately to said convey- GI'S.

8. In a dry ore-separator, the combination of a pan for holding the ore, means for di recting an air-blast into the pan, agitating mechanism for the pan, a trough below the pan, discharge-conveyers" in opposite sides of said trough, intermittingly-actuated tilting means for the pan, and an intermittingly-ac tuated deflector inthe trough for directing the tailings and concentrates separately to said conveyers respectively.

9. In a dry ore-separator, the combination with a shaft, of bearings for the shaft, apan tion, connecting means between the pan and the deflector plate to swing theplate when the shaft is rocked, an air-blast pipe discharging into the pan, and an ore-feed for the pan.

11. In adry ore-separator, the combination with a pan mounted on a shaft for the ore,

- of means for tilting the pan, comprising a rockshaft geared to said pan-carrying shaft, a constantly-rotating shaft carrying a projection, and a spring-returned arm on the said rockshaft in the path of said projection.

EDWARD W. NOAKES. i WlLLIAM H. NOAKES.

In presence of W. B. DAVIES, WALTER N. WINBERG. 

